Federal prosecutors in the corruption case against former Nassau County Executive Edward Mangano, his wife and former Oyster Bay Supervisor John Venditto revealed Wednesday they have given the defense more than a million pages of documents and other materials that include emails from a co-conspirator and surveillance videos from Mangano’s home.

The revelations were contained in the government’s response to a pretrial motion by Venditto’s attorney, Marc Agnifilo, involving securities fraud charges brought only against Venditto in the issuance of Oyster Bay securities. Edward and Linda Mangano are not charged in the alleged securities fraud scheme.

Agnifilo contended in a pretrial motion that the government was not turning over required material to the defense fast enough, including evidence that would help Venditto’s defense.

Federal prosecutors say in their papers they are following the law in what they turn over to the defense and when they do so prior to trial.

The material the government has already turned over since November, according to the government motion filed in federal court in Central Islip, includes: 1.15 million pages of documents related to the securities fraud charges aimed at Venditto alone, as well as 86,000 pages of emails and attachments from the email server of a person identified only as “Co-Conspirator #1.”

Sources have identified that person as restaurateur Harendra Singh.

Prosecutors say the Manganos and Venditto were involved in a scheme to illegally get Singh Nassau County contracts as well as more than $20 million in indirect loan guarantees from Oyster Bay.

In the court papers, the government notes that it has turned over Singh email traffic to the defense.

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Defense attorneys in court papers contend Singh was the mastermind in the scheme alleged by the government, while maintaining their clients’ innocence.

Singh previously has pleaded not guilty to a separate indictment involving charges of fraudulently obtaining the more than $20 million in indirect loan guarantees from Oyster Bay through bribery. That indictment does not mention the Manganos or Venditto.

In the government’s motion, Assistant U.S. Attorneys Lara Treinis Gatz, Catherine Mirabile and Raymond Tierney said the other material turned over to the defense includes: 35,000 pages of Town of Oyster Bay documents and emails; 30,000 pages of bank account records and 5,000 pages of phone records of unidentified people; 3,250 pages of what is described as “miscellaneous documents,” and 550 pages of documents involving unspecified loans.

The Eastern District prosecutors said the material turned over also includes 370 pages of federal income returns of unnamed people; 250 photographs; 180 pages of applications and orders involving pen registers which allow the government to track phone numbers called from a specific phone; 130 pages of FBI reports and notes; four audio-recordings, and a CD-ROM containing security video for a year from the outside of the Manganos’ Bethpage home.

A video camera had been installed by Nassau police as part of the then county executive’s security.

Edward Mangano has been charged with conspiracy, bribery, wire fraud and extortion. Linda Mangano has been charged with making false statements, conspiracy, extortion and obstruction of justice. Venditto is facing charges of conspiracy, bribery, securities fraud, wire fraud and obstruction of justice. Each has pleaded not guilty.

Defense attorneys have about a week to reply to the government’s motion. U.S. District Judge Joan Azrack is expected to rule on all motions in the case in February. The defense motions have included asking the judge to drop some charges, and give each defendant a separate trial to avoid having the case against one prejudice the others.

The trial of the Manganos and Venditto is scheduled for March 12.

Discovery material the government says it has turned over to the defense since November include: